Réamhaisnéis limistear na farraige
Forecast valid from: 12:00, Thursday 20 August 2026 until 12:00, Friday 21 August 2026
Small Craft Warning
Northerly winds will reach force 6 at times this afternoon and evening on Irish coasts from Roches Point to Erris Head to Fair Head.
Gale Warning
Nil.
Meteorological Situation at 09:00 UTC
Ireland lies in a mostly fresh to strong unstable northerly airflow, between low pressure of 997hpa centred over Scandinavia and high pressure of 1028hPa centred in the mid-Atlantic.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Roches Point to Slyne Head to Fair Head
Wind: Northerly force 5 or 6. Later decreasing force 4 or 5.
Weather: Cloudy to fair with scattered showers, some heavy.
Visibility: Moderate to poor in showers, otherwise good.
Forecast for Fair Head to Wicklow Head to Roches Point and for the Irish Sea
Wind: North to northwest force 4 or 5, occasionally force 6 in the east and on the Irish Sea.
Weather: Cloudy to fair with scattered showers, some heavy. Slight chance of thunder this afternoon and evening, mainly in the east.
Visibility: Moderate to poor in showers, otherwise good.
Outlook for a further 24 hours until 12:00, Saturday 22 August 2026
Wind: Moderate to fresh northerly wind, easing light or moderate anticyclonic variable by Saturday morning. Cloudy to fair with scattered showers, some heavy. Showers becoming isolated Friday evening.
Forecast issued at: 12:00, Thursday 20 August 2026
All times are local unless specified
